Classification
320 - Political science
340 - Law
900 - History & geography
100 - Philosophy & psychology
13
300 - Social sciences
8
140 - Specific philosophical schools
7
600 - Technology
7
700 - The arts; fine & decorative arts
7
576 - Genetics & evolution
5
330 - Economics
4
380 - Commerce, communications & transportation
4
500 - Natural sciences & mathematics
4
620 - Engineering & allied operations
4
120 - Epistemology, causation & humankind
3
170 - Ethics
3
200 - Religion
3
301 - Sociology & anthropology
3
363 - Other social problems & services
3
370 - Education
3
720 - Architecture
3
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
400 - Language
1
410 - Linguistics
1
530 - Physics
1
658 - General management
1
770 - Photography, photographs & computer art
1
791 - Public performances
1